Are there plant species that are endangered?
Yes, but scientists disagree as to the numbers. As of 2010, the International Union for Conservation of Nature and Natural Resources and the U.S. Fish & Wildlife service have identified 9,322 of the world's 321,000 fern, conifer, and flowering plant speciesas endangered with extinction. The Royal Botanic Gardens have that number at 83,600. Many researchers opt for the higher number because many plants species have not yet been identified. Throughout the world, the main threats to plants are habitat destruction, the spreading of towns, and modern farming techniques that use pesticides. Some plants, such as rare orchids and cacti, are threatened because they have been over collected. In addition, climate changes, disease, and plant-eating animals, such as goats, have destroyed many rare pants.